Hello all
I'm running rtems on tms570lc4357 , flash loaded with HalCoGen generated
loader, rtems application is loaded by gdb into SDRAM. the RTEMS bsp /
boot_card is started and broke in first line of hello.c:Init
but when booted in simple hello world task, it raised exception to 0x18,
seems data abort
11 rtems_task Init(
12 rtems_task_argument ignored
13 )
14 {
15 int i = 0;
16 i += 100;
...
}
Breakpoint 4, Init (ignored=2147657124) at ../../hello.c:15
15 int i = 0;
(gdb) disassemble
Dump of assembler code for function Init:
0x800004e8 <+0>: push {r7, lr}
0x800004ea <+2>: sub sp, #16
0x800004ec <+4>: add r7, sp, #0
0x800004ee <+6>: str r0, [r7, #4]
=> 0x800004f0 <+8>: movs r3, #0
0x800004f2 <+10>: str r3, [r7, #12]
0x800004f4 <+12>: ldr r3, [r7, #12]
0x800004f6 <+14>: adds r3, #100 ; 0x64
0x800004f8 <+16>: str r3, [r7, #12]
0x800004fa <+18>: movs r3, #0
0x800004fc <+20>: str r3, [r7, #12]
0x800004fe <+22>: b.n 0x80000514 <Init+44>
0x80000500 <+24>: ldr r1, [r7, #12]
0x80000502 <+26>: movw r0, #4192 ; 0x1060
0x80000506 <+30>: movt r0, #32770 ; 0x8002
0x8000050a <+34>: bl 0x8001b890 <printf>
0x8000050e <+38>: ldr r3, [r7, #12]
0x80000510 <+40>: adds r3, #1
End of assembler dump.
(gdb) stepi
0x00000018 in ?? ()
I used POM to map address to RTEMS exception vector. But I didn't know how
to map or debug it via GDB / OpenOCD
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